/**
 * Copyright 2017 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import {DetailedError} from "../base/DetailedError.js"

class CustomGateSet {
    /**
     * @param {!Gate} gates
     */
    constructor(...gates) {
        /** @type {!Array.<!Gate>} */
        this.gates = gates;
    }

    /**
     * @param {!Gate} gate
     * @returns {!CustomGateSet}
     */
    withGate(gate) {
        if (!gate.serializedId.startsWith("~")) {
            throw new DetailedError("Custom gates' serialized id must start with '~'.", {id: gate.serializedId, gate});
        }
        if (this.findGateWithSerializedId(gate.serializedId)) {
            throw new DetailedError("Duplicate serialized id.", {gate});
        }
        return new CustomGateSet(...this.gates, gate);
    }

    /**
     * @param {!String} id
     * @returns {undefined|!Gate}
     */
    findGateWithSerializedId(id) {
        for (let g of this.gates) {
            if (g.serializedId === id) {
                return g;
            }
        }
        return undefined;
    }
}

export {CustomGateSet}
